We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
New Instrument |

A Stiffer and Safer Light Pipe for 25-Gauge Vitrectomy

Masahito Ohji, MD; Yasuo Tano, MD
Arch Ophthalmol. 2007;125(10):1415-1416. doi:10.1001/archopht.125.10.1415.
Text Size: A A A
Published online


A drawback of the 25-gauge vitrectomy system is the flexibility of the instruments. It can be difficult to perform precise maneuvers such as removing the internal limiting membrane because it is difficult to prevent saccadic eye movements. We designed a new, less flexible, safer light pipe (compared with the standard light pipes) for 25-gauge vitrectomy. The length of the light pipe is 15 mm, making the instrument much less flexible compared with the 32-mm-long standard light pipes. The new instrument also can prevent retinal damage caused by illumination and mechanical retinal damage associated with the longer light pipe. The new short light pipe is useful for the 25-gauge sutureless vitrectomy system.

Figures in this Article



Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview


Place holder to copy figure label and caption
Figure 1.

The short light pipe (top) is 15 mm long, while the standard light pipe (bottom) is 32 mm long.

Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.

A, The standard light pipe (left) bends 2.5 mm. B, The short light pipe (right) bends 0.5 mm.

Graphic Jump Location




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

5 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Collections
PubMed Articles